Simple categories matching crowded:

• occasion,
• beach,
• gathering,
• area,
• place,
• environment,
• room,
• space,
• condition,
• quarters,
• building,
• setting,
• location,
• situation,
• institution,
• vehicle,
• facility,
• country,
• region,
• event,

Members with property crowded:

• subway,
• prison,
• town,
• tavern,
• school,
• health-care_facility,
• ski_area,
• auditorium,
• nightclub,
• day-care_centre,
• bus,
• group_setting,
• public_place,
• market,
• office,
• busy_market,
• mall,
• restaurant,
• army_camp,
• theater,
• galactic_centre,
• airport,
• bar,
• town_center,
• supermarket,
• fast-food_restaurant,
• veterinarian_office,
• shopping_area,
• pet_store,
• large_hall,
• festival_grounds,
• cinema_theatre,
• hospital,
• military_barrack,
• busy_park,
• mosque,
• homelessness,
• taxi_garage,
• town-hall_lawn,
• city_square,
• state-department_store,
• football_match,
• festival,
• battlefield,
• crowded_bus,
• academic_convention,
• fair,
• wedding,
• busy_street,
• dance,
• ruin,
• discotheque,
• playground,
• theatre,
• large_store,
• daycare_centre,
• fair_grounds,
• cluster_center,
• town_centre,
• queen_square,
• mental_hospital,
• big_shop,
• dance_club,
• district,
• crowded_shop,
• workplace,
• entertainment_venue,
• disco,
• musical_concert,
• day-care_center,
• sporting_event,
• national_monument,
• train_carriage,
• intersection,
• athletic_arena,
• educational_institution,
• subway_area,
• arena,
• image_centre,
• loaded_bus,
• city,
• er,
• campground,
• traffic_problem,
• public_thoroughfare,
• stadium,
• sporting_arena,
• bush,
• tourist_site,
• meeting_room,
• synaptic_cleft,
• city_bus,
• packed_bus,
• trade_fair,
• hotel,
• day-care_setting,
• camp,
• mental_institution,
• workshop,
• public_hall,
• night_market,
• street_fair,
• train,
• state_fair,
• canteen,
• area,
• suburb,
• shop,
• library,
• township,
• border_crossing,
• high_street,
• water_medium,
• alcoholism,
• convention_center,
• county_fair,
• daycare_center,
• hostel,
• city_street,
• mental_facility,
• mission_district,
• house,
• harbour,
• wooded_area,
• entertainment_area,
• onset_beach,
• hospitality_area,
• station,
• sport_venue,
• downtown_area,
• station_area,
• college_dorm,
• military_cantonment,
• town_event,
• small_office,
• corporate_office,
• surroundings,
• group_home,
• grocery,
• building,
• campus_field,
• public_structure,
• apartment,
• tree_top,
• service_center,
• beach,
• thai_palace,
• party,
• jail,
• park,
• aquaculture_facility,
• rugby_match,
• casino,
• raffles_city,
• orphanage,
• military_setting,
• secondary_school,
• congested_area,
• escalator,
• sacrifice,
• shopping_center,
• concert,
• big_town,
• big_city,
• camden_town,
• manifestation,
• dormitory,
• northeast,
• play_center,
• place,
• cinema,
• homeless_shelter,
• christmas_party,
• sport_event,
• shelter,
• railway_interchange,
• busy_mall,
• toilet,
• green_park,
• square,
• jones_beach,
• circus,
• sport_arena,
• institutional_setting,
• church,
• idp_camp,
• churchill_bridge,
• home,
• landmark,
• community,
• marketplace,
• newsstand,
• amusement_quarter,
• hockey_arena,
• street_market,
• campus,
• work_center,
• cinema_theater,
• street_parade,
• hotel_lobby,
• barrack,
• comic_strip_convention,
• army_barrack,
• store,
• work_place,
• city_environment,
• united_state,
• institution,
• cabin,
• political_convention,
• theater_lobby,
• popular_market,
• tourist_area,
• farmer_market,
• daycare_facility,
• residential_home,
• medina,
• downtown,
• child-care_center,
• pub,
• terminal,
• emergency_shelter,
• museum_environment,
• terminal_building,
• street_festival,
• sport_stadium,
• outdoor_market,
• state,
• classroom,
• similar_facility,
• clinic,
• pedestrian_mall,
• goods,
• military_camp,